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Re: Duramax Code 64C
Posted to Technical Tips Forum on 1/26/2013 1 Reply

Either you misread the Info or Mod is missing it, read Gm Si Document 1616114.

1. Ignition ON, verify the scan tool GPCM Ignition 1 Signal parameter is battery voltage.

⇒ If the Ignition 1 Signal parameter is not battery voltage, test the... Login to read more.

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